This converts a png into puzzlescript object format. It works for sizes that aren't typical for the editor

pzr.py

def addUnique(l,item):
        if item not in l:
                l.append(item)
        return l

from PIL import Image
import sys
im = Image.open(sys.argv[1])
pix = im.load()

#first create the legend
# Creates a list containing 5 lists initialized to 0
out_l_l = [[0 for x in range(im.size[0])] for x in range(im.size[1])]
col_set = []

for j in range(im.size[0]):
        for i in range(im.size[1]):
                r, g, b, a = pix[i,j]
                curPixel = '#%02x%02x%02x' % (r, g, b)
                if a != 0:
                        addUnique(col_set, curPixel)

line = ""
for item in col_set:
        line += item + " "
print line

for j in range (im.size[0]):
        line = ""
        for i in range (im.size[1]):
                r,g,b,a = pix[i,j]
                if (a == 0):
                        line += "."
                else:
                        curPixel = '#%02x%02x%02x' % (r, g, b)
                        line += str(col_set.index(curPixel))
        print(line)